12 Days of Christmas
387
Abundant Numbers
607
Abundant Numbers (Long)
667
Arithmetic Numbers
646
Collatz
743
Divisors
824
Emojify
415
Fibonacci
624565932
Fizz Buzz
568
846
Foo Fizz Buzz Bar
712
ISBN
582
Niven Numbers
767
Niven Numbers (Long)
834
Pangram Grep
721705
Tongue-twisters
372
Vampire Numbers
68
π
56